Which image best illustrates diffraction

When a car comes to a stop, the car’s brakes create a force that is in the opposite direction as the velocity vector.

A friction force is a type of force that opposes two surfaces that are in contact with each other.

According to Newton's first law of motion, an object at rest or uniform motion in a straight line will continue in that state unless it is acted upon by an external force. And the object will tend to move in the direction of the applied force.

So if a car's brake is applied, it will create a friction force that will oppose the motion of the car and by so doing, it will gradually bring the car to a complete stop.

The force created by the brake of the car is friction force and it is in opposite direction to the force of the car.

Learn more about force of friction here: https://brainly.com/question/20241845

#SPJ1

Answer:

Mathematically, Hooke's law states that the applied force F equals a constant k times the displacement or change in length x, or F = kx.

Explanation:

Hooke's law was about the spring its compression or stretching it says that the the force we apply to the spring to compress or stretch it is directly proportional to the distance it traveled while compressing or stretching.

The Hooke's equation is:

F is the force applied, k is spring constant and x is the distance traveled by spring that is during compression or stretching.

The near point of a human eye is about a distance of 25 cm.

The closest distance that an object may be viewed clearly without straining is known as the near point of the eye.

This distance (the shortest at which a distinct image may be seen) is 25 cm for a typical human eye.

The closest point within the accommodation range of the eye at which an object may be positioned while still forming a focused picture on the retina is also referred to as the near point.

In order to focus on an item at the average near point distance, a person with hyperopia must have a near point that is further away than the typical near point for someone of their age.

To learn more about near point, click:

https://brainly.com/question/32579304

#SPJ1

Answer:

Explanation:

The formula for calculating impulse is expressed as

Impulse = force x time

From the information given,

Force = 60

time = 11

Thus,

Impulse = 60 x 11

Impulse = 660 Ns

Answer:

the blue one

Explanation:

The resistance indicated by the platinum thermometer at 200°C is 1.648 times the reference resistance Ro at 0°C.

For more questions on thermometer

https://brainly.com/question/29503787

#SPJ8

Answer:

An ohmic conductor is defined as one which obeys ohm's law that is V ∝ I where is the voltage and is the current. There must be a linear graph. Silver is an example of an ohmic conductor as the graph for silver is a linear graph. Silver and copper are some examples of ohmic conductor

The exact total resistance of 1200 Ω is due to the rounded values of resistors available in practical circuits.

To determine the values of the resistors, we can use Ohm's Law:

Voltage (V) = Current (I) × Resistance (R)

Given that the voltage drop across the battery is 6V and the current out of the battery is 5mA (0.005A), we can calculate the total resistance:

Total Resistance (R_total) = Voltage (V) / Current (I)

R_total = 6V / 0.005A

R_total = 1200 Ω

Now, let's assign values to the individual resistors to achieve this total resistance:

R1 = 220 Ω

R2 = 470 Ω

R3 = 330 Ω

R4 = 680 Ω

R5 = 820 Ω

R6 = 350 Ω

With these values, the total resistance of the circuit would be:

R_total = R1 + (R2 || R3) + (R4 || R5) + R6

R_total = 220 Ω + (470 Ω || 330 Ω) + (680 Ω || 820 Ω) + 350 Ω

R_total ≈ 220 Ω + 214.8 Ω + 351.5 Ω + 350 Ω

R_total ≈ 1136.3 Ω

The slight deviation from the exact total resistance of 1200 Ω is due to the rounded values of resistors available in practical circuits.

Therefore, Here's a circuit diagram with six resistors in a combination of series and parallel arrangements to achieve a total resistance appropriate for a 6V battery and 5mA current:

To learn more about Ohm's Law click:

brainly.com/question/1247379

#SPJ1

According to the table:

For a concave mirror to produce a real and reduced image, the object must be farther away than the radius of curvature. Then, the answer is:

4) It is farther away than the radius of curvature.

Answer:

section 2

Explanation:

section 2 contains Alkali, Alkaline, Transition, and Post-transition metals

The coefficient of volume expansion of the liquid = 1.97 × 10⁻³ /⁰C

The amount of volume that a substance expands by per unit of its original volume for each degree that its temperature rises is known as the coefficient of volume expansion.

As we know, The coefficient of volume expansion of the liquid

= change in volume/(original volume × temperature difference)

= (V₂ - V₁)/[V₁ × (T₂ - T₁)]

Change in volume = (V₂ - V₁)

Here, V₂ ( final volume) = 1.31 L

V₁  (initial volume)= 1.55 L

T₂ (final temperature) = 14.7 degrees

T₁ (initial temperature) = 96 degrees

The coefficient of volume expansion of the liquid

= (1.31 - 1.55) / [1.5 × (14.7- 96)]

= 1.97 × 10⁻³ /⁰C

Thus, the coefficient of volume expansion of the liquid = 1.97 × 10⁻³ /⁰C

To know more about coefficient of volume expansion refer to:

https://brainly.com/question/24042303

#SPJ1

Answer:

c

Explanation:

(a) The time it takes for you to change your displacement by 16 m east is 8.67 s.

(b) The time it takes for you to change your displacement by 26 m north is 35.3 s.

(a) The time it takes for you to change your displacement by 16 m east is calculated as follows;

s = vt + ¹/₂at²

where;

16 = 1.9 x cos(13.8)t

16 = 1.845t

t = 16/1.845

t = 8.67 s

(b) The time it takes for you to change your displacement by 26 m north is calculated as follows;

16 = 1.9 x sin(13.8)t

16 = 0.453t

t = 16/0.453

t = 35.3 s

Learn more about time of motion here: https://brainly.com/question/24739297

#SPJ1

Answer:

a)106.48 x 10⁵ kg.m²

b)144.97 x 10⁵  kgm² s⁻¹  

Explanation:

a)Given

m = 5500 kg

l = 44 m

Moment of inertia of one blade

\(I\)= 1/3 x m l²

where m is mass of the blade

l is length of each blade.

Putting all the required values, moment of inertia of one blade will be

\(I\)= 1/3 x 5500 x 44²  

\(I\)= 35.49 x 10⁵ kg.m²

Moment of inertia of 3 blades

\(I\)= 3 x 35.49 x 10⁵ kg.m²

\(I\)= 106.48 x 10⁵ kg.m²

b) Angular momentum 'L' is given by

L =\(I\) x ω

where,

\(I\)= moment of inertia of turbine i.e  106.48 x 10⁵ kg.m²

ω=angular velocity =2π f

f is frequency of rotation of blade i.e  13 rpm

f = 13 rpm=>= 13 / 60 revolution per second

ω = 2π f =>  2π  x  13 / 60 rad / s

L=\(I\) x ω =>106.48 x 10⁵ x   2π  x  13 / 60

  = 144.97 x 10⁵  kgm² s⁻¹    

Two objects are held close together. When they are released, they move toward one another. The conclusion is supported by this evidence is  the objects have opposite charges.

An electric charge is a physical property that causes matter to experience a force when in close proximity to other electrically charged matter. There are two types of electric charges: positive and negative. Protons, which are positively charged, and electrons, which are negatively charged, are subatomic particles that make up matter.

In general, the protons and neutrons in the nucleus of an atom have a net positive charge, while electrons, which orbit the nucleus, have a net negative charge. The charges of these subatomic particles are indicated by the symbols "p" for proton, "n" for neutron, and "e" for electron.

Know more about  electric charge   here:

https://brainly.com/question/23212561

#SPJ11

The answer is B. 2 s. The impulse provided by both engines is the same, so they must fire for the same amount of time in order to provide that amount of impulse.

Engines are devices that convert energy into mechanical force, usually to power machines and vehicles. Engines come in a variety of forms and sizes, but all are based on the same basic principles of converting thermal energy into mechanical force via combustion.

Since the first engine fires for 2 s and provides 6 N of thrust,
the second engine must also fire for 2 s to provide 4 N of thrust (since 6N/2s = 4N/x, where x = 2s).

To learn more about engines
https://brainly.com/question/30197699
#SPJ4

The temperature remains constant while the substance is changing state.The correct answer is option C.

When a substance undergoes a change of state, such as melting, boiling, or condensing, the temperature of the substance remains constant during the phase transition. The process of changing state requires the absorption or release of heat energy without a change in temperature.

For example, when a solid is heated, its temperature increases until it reaches the melting point. At this point, the substance starts to change from a solid to a liquid, but the temperature remains constant until all the solid has melted.
The absorbed heat energy is used to break the intermolecular forces holding the particles together, rather than increasing the kinetic energy of the particles.

Similarly, during the process of condensation or freezing, a substance releases heat energy as it changes state. This released energy is used to form intermolecular forces and convert the substance from a gas to a liquid or a liquid to a solid. The temperature remains constant until the phase transition is complete.
For more such questions on temperature ,click on:

https://brainly.com/question/26866637

#SPJ11

Answer:

needs to be going about 11 kilometers (7 miles) per second,

Explanation:

Answer:

gravitational potenetial energy =ℎ

Explanation:

none

Bones are physical characteristics that protect animals from forces.

The Kinetic energy of the cell phone of mass 0.08 kg is 9 J.

Kinetic energy is the energy of a body in motion.

To calculate the kinetic energy of the cell phone, we use the formula below.

Formula:

Where:

From the question,

Given:

Substitute these values into equation 1

Hence, the Kinetic energy of the cell phone is 9 J.

Learn more about kinetic energy here: https://brainly.com/question/25959744

#SPJ1

a) The angle θ1 which the righthand cable makes with respect to the ceiling is  sin^(-1)(692 N / 530 N).

b) The angle θ2 which the left-hand cable makes with respect to the ceiling is  sin^(-1)(692 N / 570 N).

We may utilise the tension of the right-hand cable as well as its vertical and horizontal components to determine the angle 1. θ2 = sin^(-1)(692 N / 570 N).

We may apply the ideas of trigonometry and vector addition to address this issue.

a) The tension of the right-hand wire as well as its vertical and horizontal components can be used to determine the angle 1.

T1sin(1) calculates the vertical component of the right-hand cable's tension, which is equal to the object's weight (692 N).

T1sin(θ1) = 692 N

We may rearrange the equation to find 1:

θ1 = sin^(-1)(692 N / T1)

We can find 1 by substituting the given tension value, T1 = 530 N:

θ1 = sin^(-1)(692 N / 530 N)

b) Similarly, we can use the formula to determine the angle 2 the left-hand cable's tension and its vertical and horizontal components.

The vertical component of the left-hand cable's tension is given by T2sin(θ2), and it should also be equal to the weight of the object (692 N).

T2sin(θ2) = 692 N

To find θ2, we can rearrange the equation:

θ2 = sin^(-1)(692 N / T2)

Substituting the given tension value T2 = 570 N, we can solve for θ2:

θ2 = sin^(-1)(692 N / 570 N)

Calculating these angles using the given tension values will provide the answers in degrees.

For more question on tension

https://brainly.com/question/24994188

#SPJ11

A spherical raindrop would fall from a height of 2.70 km at a speed of 26.22 m/s due to air resistance.

(a) Height from which the raindrop falls, h = 2.70 km = 2700 m

Now,

suppose, m = mass of raindrop

v = speed of raindrop at the ground.

Apply conservation of energy -

1/2 m v^2 = m g h

v = (2 g h)^1/2

  = (2 * 9.8 * 2700)^1/2 = 230.0 m/s (Answer)

Dynamics

m x" = m g - k x'^2

limit speed is

v = (m g / k)^1/2

where

k = 1/2 ρ A C

ρ = air density = 1.21 kg/m^3

A = area = π r^2 = 3.141 * 0.0015^2 = 7.07 x 10^-6 m^2

C = coefficient of hydraulic resistance [0.47 for a sphere]

m = ρ' V = 1.0 x 10^3 x (4/3)*pi*0.0015^3 = 1.41 x 10^-5 kg

k = 1/2*1.21*7.07x10^-6*0.47

  = 2.01 x 10^-7 kg/m

Therefore,

v = [(1.41 x 10^-5 x 9.8) / (2.01 x 10^-7)]^1/2

  = 26.22 m/s

to know more about the surface area here:

brainly.com/question/29298005

#SPJ1

Answer:

mercury ,venus, earth

Answer

hope this helps

brainliest appreciated

good luck! have a nice day!

We know that the average speed is defined as the distance traveled over time, that means that the average spees is:

Now, since the family drove 600 miles the first day this means that the second day they drove 400 miles and that they traveled that distance in 8 hours, this means that the average speed the second day is:

Therefore the speed was 50 mph the second day.

Answer:896000 J

Explanation: K.E = 1/2*m*v^2

Answer:

The car has Kinetic energy. 896000 Joules

Explanation:

Kinetic energy formula: 1/2 (mass)(speed)^2

First you multiply 1120 by 1/2 and get 560

Then you take the square root of 40 (\(40x^{2}\)) and get 1600

Finally to get the answer multiply 560 by 1600 and your final answer should be 896000 Joules

Answer:

3 cm³

Explanation:

Density of the cork = 0.6 g/cm³

Density of water = 1 g/cm³

Volume of cork = 5 cm³

We all know that the formula for density is given as

Density = mass/volume,

The mass of the cork is

Mass = density * volume

Mass = 0.6 * 5

Mass = 3 gram

Given that the density is 0.6, and it is partially floating, then we can say that the volume of the cork below the water is

5 * 0.6 = 3 cm³

The volume of cork is below the water 3 cm³.

Given data:

The density of Cork is,  \(\rho = 0.60 \;\rm cm^{3}\).

The density of water is, \(\rho_{w} = 1.0 \;\rm g/cm^{3}\).

The total volume of piece of cork is,  \(V = 5.0 \;\rm cm^{3}\).

In the given problem, we can use the concept of density. The mass of substance occupied per unit volume is known as Density of substance. The expression for the density is given as,

Density = mass/volume,

And, the mass of the cork is

Mass = density * volume

Mass = 0.6 * 5

Mass = 3 gram

Given that the density is 0.6, and it is partially floating, then we can say that the volume of the cork below the water is,

= 5 * 0.6 = 3 cm³

Thus, we can conclude that the volume of cork is below the water 3 cm³.

learn more about the concept of density here:

https://brainly.com/question/21667661

Answer:Magnetic fields from two sources add up as vectors at each point, so the strength of the field is not necessarily the sum of the strengths1. Magnetic fields are vectors, which means they have direction as well as size. Therefore, the sum of two magnetic fields is not simply the sum of their magnitudes2.

Explanation:

Heat is the total energy of the motion of the molecules of a substance, whereas temperature refers to the measure of the average energy of the motions of the molecules in the substance. The heat is dependent on factors like the speed of the particles, the size of the particles and the number of particles, etc.

Differences between Heat and Temperature are :

Convert -40.3 degrees Celcius to Kelvin State.

The formula for Celsius to Kelvin temperature conversion is :

K = C + 273.15

Hence, -40.3 degrees Celcius to Kelvin is K = -40.3 + 273.15 = 232.85 K.